METHOD FOR X-RAY DETERMINATION OF VALUE OF DISTALISATION OF FIRST MOLARS OF UPPER JAW Russian patent published in 2024 - IPC A61B5/103 A61B6/02 A61C7/00 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to dentistry, particularly to orthodontics, and can be used in diagnosing abnormal position of teeth on upper jaw during occlusion of permanent teeth. Performing a three-dimensional X-ray examination of the dentoalveolar system of the patient to obtain an orthopantomogram of the jaws, on which a horizontal line and vertical lines perpendicular to it are built, passing through an apex of a mesiobuccal tuber of the first molar of the upper jaw and an anteriocuspidate fissure of the first molar of the lower jaw. At that, the horizontal line is built along the tops of the cusps of the lateral group of the teeth of the lower jaw, and the value by which it is necessary to distalize the first upper molars before closure according to the first Angle class, is determined by distance between points of intersection of vertical and horizontal lines.

EFFECT: method enables calculating the required amount of distalisation of the first upper molars relative to the first lower molars, before the beginning of the orthodontic treatment, taking into account not only the location of the crown part, but also their roots.

1 cl, 1 dwg, 2 ex